Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
sereno
←
Latin
serēnus
(derived)
→
Portuguese
serenamente
(affix)
→
Portuguese
serenidade
(suffix)
→
Portuguese
sereníssimo
(affix)